RU2778175C1 - Single-seat electric airplane - Google Patents

Abstract

FIELD: aircraft technology.

SUBSTANCE: group of inventions relates to the field of placement of power plants on an aircraft. A single-seat electric aircraft consists of a wing (1), a flat truss fuselage (2) with a tube (9), vertical tail (3), horizontal tail (4), an open cockpit (5), cable braces (6), an electric motor with an air screw (7) and a battery (8). The flat fuselage includes a pipe (9) that passes through the center of the electric motor with an air screw (7), which is part of the electric power plant.

EFFECT: group of inventions is aimed at expanding the arsenal of technical means.

2 cl, 2 dwg

Description

The invention relates to aviation technology, namely to light single-engine aircraft for flights.

Light aircraft are known from the prior art, using an internal combustion engine (ICE) as a power plant. Aircraft E-12NK (http://e12n.narod.ru/e12foto.html) and Dar Solo (https://en.wikipedia.org/wiki/DAR_Solo) are close to the invention. An internal combustion engine must be serviced regularly. The use of hydrocarbons (mainly gasoline) as fuel harms the environment due to emissions of combustion products into the atmosphere. Another disadvantage of internal combustion engines is that the cost of hydrocarbon fuel (gasoline) is higher than electrical energy. Basically, the engines are located in front of the pilot, thereby partially limiting his view or above the surface of the wing, creating a moment from the thrust force that affects the stability and controllability of the aircraft.

A single-seat electric aircraft has been developed, which uses an electric motor as a power plant. It is not serviced during its entire life cycle, it requires electricity stored in the battery with the help of a charger from the public power grid. There are no harmful emissions into the atmosphere. Due to the simple design of the electric motor, it was possible to place it close to the center of gravity of the aircraft, thereby minimizing the influence of the power plant on the aircraft's balance and reducing the moments from the engine thrust affecting the stability and controllability of the electric aircraft, ensuring the placement of the power plant in the safest place in the fuselage behind the pilot, maintaining visibility from an open cockpit, reduce the noise from the rotating propeller. Direct access to the power plant (rotating propeller) is limited by its distance from the pilot, and the braces that are a structural element (stretched from the middle of the wing console to the tail) are an obstacle to getting into the propeller rotation zone. Part of the fuselage structure (top tube of the flat truss structure) passes through the electric motor structure (there is a hole in the center of the electric motor). The battery is close to the center of gravity. This allows you to use batteries of different weights.

Figure 1 shows a general view of the electric aircraft. It consists of a wing (pos. 1), a flat fuselage of a truss structure (pos. 2), vertical tail (pos. 3), horizontal tail (pos. 4), an open cockpit (pos. 5), cable braces (pos. 6), an electric motor with a propeller (pos. 7), a battery (pos. 8). Figure 2 shows the motor mount, showing the fuselage truss tube (item 9) passing through the motor (item 7). A prototype was made, which passed flight tests and confirmed the declared advantages.

Claims (2)

1. Single electric aircraft, consisting of a wing (1), a flat truss fuselage (2) with a pipe (9), a vertical tail (3), a horizontal tail (4), an open cockpit (5), cable braces (6), an electric motor with a propeller (7), which is part of the electric power plant, and a storage battery (8). 2. Flat fuselage, including a tube (9) that passes through the center of the electric motor with a propeller (7) that is part of the electric power plant.

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